Our high pressure washer have a 1/4 inch connection, working pressure up to 4000 PSI, suitable for most devices. The power washer nozzle tips is versatile and useful for cleaning concrete sidewalk, steps, wood deck, wall, shed and car. It has 6 different cleaning modes: 0, 15, 25, 40 degree, Rinse, and Soap. The adjustable nozzle quick connect has a standard 1/4 QC plug for easy connection and disconnection to pressure washer.